How to get “active editor” in Eclipse plugin?

Question

In my Eclipse plugin, I need to know when the editor that is visible on the screen has changed. I am currently getting the active editor as follows:

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Answer 1

1. An editor is active only when it has focus, so what you are getting is the right output by the API. The user of your plugin will not be running it in debug mode, so not a concern for the end user
2. Alternatively, to get all open editors you can do the following:

PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getEditorReferences()